My '07 Spec B throttle does not respond the first 1/4" its pushed. It makes the car very hard to drive smoothly. I just came back from a 2 week trip in Europe, drove a 6spd Mini while there, and really notice this dead spot more than ever now on my car.

I have verified this with Romraider logger, no change in voltage or throttle angle % seen by ECU during the first 1/4" of travel. I looked at the internals, no adjustment, as it's a hall effect sensor.

Is this typical for all of these cars? If so does the STi pedal respond any better? If it does, anyone know if it is a bolt on?